diff options
Diffstat (limited to 'include/SDL_blendmode.h')
| -rw-r--r-- | include/SDL_blendmode.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/include/SDL_blendmode.h b/include/SDL_blendmode.h index 37c475aefd..85aa474595 100644 --- a/include/SDL_blendmode.h +++ b/include/SDL_blendmode.h @@ -39,10 +39,17 @@ extern "C" { */ typedef enum { - SDL_BLENDMODE_NONE = 0x00000000, /**< No blending */ - SDL_BLENDMODE_BLEND = 0x00000001, /**< dst = (src * A) + (dst * (1-A)) */ - SDL_BLENDMODE_ADD = 0x00000002, /**< dst = (src * A) + dst */ - SDL_BLENDMODE_MOD = 0x00000004 /**< dst = src * dst */ + SDL_BLENDMODE_NONE = 0x00000000, /**< no blending + dstRGBA = srcRGBA */ + SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending + dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA)) + dstA = srcA + (dstA * (1-srcA)) */ + SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending + dstRGB = (srcRGB * srcA) + dstRGB + dstA = dstA */ + SDL_BLENDMODE_MOD = 0x00000004 /**< color modulate + dstRGB = srcRGB * dstRGB + dstA = dstA */ } SDL_BlendMode; /* Ends C function definitions when using C++ */ |